A curated index of all 139 SEO examples for mql4, built for quick discovery and comparison across quantitative trading scenarios.
Learn to implement the Keltner Channel volatility-based strategy in Mql4 without custom indicators. This guide shows how to calculate the channel lines using iMA() for the midline ...
Build a powerful Mql4 script to manage your overall exposure. This tutorial shows how to loop through all open orders, calculate the total floating profit/loss, and close all posit...
Explore the Anti-Martingale money management strategy in Mql4. This guide explains how to code an EA that increases lot size after a win and decreases it after a loss, aiming to co...
Secure profits progressively with multiple take-profit targets. This Mql4 guide demonstrates how to manage a single trade with several TP levels, using partial close logic and orde...
Learn to code the classic Donchian Channel breakout strategy directly in your Mql4 EA. This tutorial uses the iHighest() and iLowest() functions to find price channels without rely...
Master your chart layouts with Mql4. This guide explains how to find specific indicator subwindows using ChartWindowFind() and how to create, move, or delete objects within them fo...
Learn how to implement time-based exits in your Mql4 Expert Advisor. This guide covers closing trades at the end of the day, before the weekend, or after a specific duration using ...
Scale into your winning trades with a pyramiding strategy. This Mql4 tutorial shows how to programmatically add to an open position at predefined profit levels, while adjusting you...
Improve your Mql4 EA's reliability by learning how to verify trade execution details. This guide covers checking the executed price against your requested price and handling s...
Learn to calculate Heikin-Ashi candle values from scratch within your Mql4 EA. This guide walks you through building a trend-following strategy based on smoothed Heikin-Ashi signal...
Go beyond the standard account report by building your own trade history analyzer. This Mql4 script tutorial explains how to loop through closed orders using OrdersHistoryTotal() a...
Unlock your indicator data for external analysis. This step-by-step guide shows you how to write a Mql4 script that uses iCustom() to read indicator values and FileOpen()/FileWrite...
Synchronize multiple Expert Advisors by creating a shared data system. This guide demonstrates how to use GlobalVariableSet() and GlobalVariableGet() to build a symbol blacklist th...
Learn to automate your technical analysis by programmatically creating and adjusting Fibonacci Retracement objects on the chart. This tutorial covers ObjectCreate(), ObjectSetInteg...
Don't let requotes and temporary server errors stop your EA. This guide provides a code example for a robust retry loop around OrderSend() that handles common trading errors l...
Enhance your trading strategies by adding a volatility filter. This tutorial shows you how to use the iStdDev() function in Mql4 to measure market volatility and enable or disable ...
Learn to create powerful Mql4 utilities that can manage trades across all open charts. This guide covers using ChartFirst(), ChartNext(), and order loops to build a script that can...
Make your Mql4 Expert Advisor resilient to terminal restarts. This tutorial explains how to use FileWriteStruct() and FileReadStruct() to save your EA's critical variables to ...
Improve the reliability of your Mql4 Expert Advisors by implementing a pre-flight check function. This guide shows how to use IsConnected(), IsTradeAllowed(), and TerminalInfoInteg...
Learn how to use AccountInfoDouble(), AccountInfoInteger(), and AccountInfoString() in Mql4 to create a real-time on-chart dashboard that displays key account metrics like balance,...
Understand the key differences between Mql4's predefined variables (like Ask, Bid, Bars) and API functions (like SymbolInfoDouble(), iBars()). Learn when to use each for optim...
Learn the fundamentals of creating custom indicators in Mql4. This guide covers the essential components, including #property directives, IndicatorBuffers(), SetIndexBuffer(), and ...
Control multiple EAs from a single interface. This advanced Mql4 tutorial demonstrates how to create a 'master' EA that sends commands via EventChartCustom() to multiple ...
Efficiently manage data in your Mql4 programs. This guide provides practical examples for using ArrayCopySeries() for timeseries data, ArrayCompare() for checking data integrity, a...
Go beyond standard optimization metrics. This tutorial shows how to use the OnTester() event handler and TesterStatistics() function to create custom fitness functions and detailed...
Prevent common trading errors by properly managing the trade context. This guide explains how to use IsTradeAllowed() and IsTradeContextBusy() to ensure your Mql4 EA only sends tra...
Improve your Mql4 coding efficiency by creating reusable libraries. Learn the difference between include files (.mqh) and compiled libraries (.ex4) and how to import them into your...
Go beyond bar data and learn how to access the latest tick information in Mql4. This tutorial explains the MqlTick structure and how to use SymbolInfoTick() to get precise, real-ti...
Master order management in Mql4 by learning the difference between the active trade pool and the account history. This guide details how to use OrderSelect() to access both open an...
Learn to automate the Relative Vigor Index (RVI) trading strategy. This comprehensive Mql4 tutorial provides step-by-step code for building an EA that trades RVI line crossovers.
Speed up your EAs by avoiding unnecessary calculations. This Mql4 tutorial demonstrates how to use `ArrayCompare()` to quickly check if indicator data or market conditions have cha...
Unlock advanced trade analysis by embedding data in order comments. Learn how to use Mql4 string functions like `StringSplit()` and `StringFind()` to encode and decode strategy IDs...
Protect your account from a margin call. This advanced Mql4 guide explains how to monitor your account's stopout level and mode programmatically, allowing your EA to take defe...
Go beyond simple lines in your custom indicators. This tutorial explains how to use `SetIndexStyle()`, `SetIndexArrow()`, and different `DRAW_` types to create visually rich indica...
Learn to create an Mql4 script or EA that automatically manages your pending orders. This guide shows how to use `OrderExpiration()` and `OrderModify()` to set or remove expiration...
Increase the reliability of your trading signals. This tutorial demonstrates how to code an Mql4 Expert Advisor that requires confirmation from multiple indicators (e.g., RSI and a...
Avoid costly time-related errors in your EAs. This guide explains how to correctly use `TimeGMT()`, `TimeLocal()`, and `TimeDaylightSavings()` to manage different timezones and day...
Improve your backtesting speed and efficiency. Learn how to use `IsOptimization()` and `IsVisualMode()` to create Mql4 EAs that behave differently during testing, optimization, and...
This tutorial walks you through creating a complete Mql4 Expert Advisor based on the Momentum indicator. Learn to trade momentum shifts and crossovers automatically with this detai...
Learn advanced techniques to make your Mql4 Expert Advisors run faster and use less memory. This guide covers efficient array management with ArrayResize's reserve parameter, ...
Stop guessing what's wrong with your code. This comprehensive guide covers essential Mql4 debugging techniques, including using Print(), Comment(), DebugBreak(), and the built...
Gain precise control over date and time in your Mql4 EAs. This tutorial explains how to use the MqlDateTime structure with TimeToStruct() and StructToTime() to easily parse, modify...
This guide provides a step-by-step tutorial for coding an Expert Advisor based on the Standard Deviation Channel. Learn to identify trading opportunities when price breaks out of o...
Learn how to create a simple yet effective trade copier Expert Advisor in Mql4. This tutorial guides you through the logic of reading trades from a master account and replicating t...
Build smarter EAs by fetching crucial contract specifications programmatically. Learn to use SymbolInfo functions to get swap rates, margin requirements, stops level, tick size, an...
Enhance your EA's robustness by querying the client terminal's environment. This guide covers how to use TerminalInfo functions to get build numbers, installation paths, ...
Go beyond static images. Learn to create dynamic graphical resources in your Mql4 EAs and indicators using ResourceCreate(), allowing you to generate custom visuals, charts, and da...
This tutorial explains how to use the iBarShift() function in Mql4 to locate the exact bar index corresponding to a specific date and time, essential for event-based backtesting an...
Learn how to use the Mql4 ArraySort() function to sort numerical data. This guide covers practical examples like ranking currency pairs by strength or calculating median values for...
Go beyond simple stop-loss adjustments. This guide explores advanced uses for the OrderModify() function in Mql4, including modifying pending order entry prices, implementing multi...
Move beyond bar-based trading and learn how to build an Mql4 Expert Advisor that reacts to every incoming tick. This tutorial covers the SymbolInfoTick() function and the MqlTick s...
Make your Mql4 Expert Advisors more robust by verifying that sufficient historical data is available before running calculations. This tutorial explains how to use SeriesInfoIntege...
Learn how to add a layer of security to your Mql4 applications. This guide demonstrates how to use the built-in CryptEncode() and CryptDecode() functions to encrypt sensitive infor...
Go beyond standard chart objects. This advanced Mql4 tutorial teaches you how to create and update dynamic images directly on your chart using an array buffer and the ResourceCreat...
Unlock advanced integration capabilities by learning how to use Named Pipes for real-time, two-way communication between your Mql4 Expert Advisor and external applications like Pyt...
Master trade management in Mql4 by learning how to effectively use OrderSelect() with MODE_TRADES and MODE_HISTORY. This guide shows you how to calculate strategy-specific statisti...
Learn to create a simple graphical user interface (GUI) on your MetaTrader 4 chart. This guide covers using ObjectCreate() for buttons and labels and handling user interactions wit...
Elevate your custom indicators by learning how to dynamically change horizontal level values in Mql4. This tutorial covers the IndicatorSetDouble() and IndicatorSetInteger() functi...
Learn how to programmatically find the highest high and lowest low over a specific period in Mql4 using the iHighest() and iLowest() functions. This guide is essential for building...
This tutorial provides a step-by-step guide to creating a trading robot based on the Envelopes indicator. Learn how to use iEnvelopes() to trade breakouts and reversions from the u...
Unlock advanced capabilities in your EAs by learning to parse and manipulate text data. This guide covers practical uses for StringSplit(), StringReplace(), and other string functi...
Learn a lightweight method to display critical trading information directly on your chart. This tutorial shows how to use the Comment() and StringFormat() functions to create a dyn...
Discover how to dynamically control indicators on your charts using Mql4. This guide covers ChartIndicatorsTotal(), ChartIndicatorName(), and ChartIndicatorDelete() to build powerf...
Learn to code a complete Expert Advisor using the Williams' Percent Range (WPR) indicator. This guide shows how to use the iWPR() function to identify and trade overbought and...
This tutorial explains how to develop an Expert Advisor that measures market strength using the Bulls Power and Bears Power indicators. Learn to use iBullsPower() and iBearsPower()...
Learn to automate trading based on the Bill Williams' Awesome Oscillator. This tutorial covers coding an EA to trade the zero-line cross and saucer signals using the iAO() fun...
This guide teaches you how to create an Expert Advisor using the Accumulation/Distribution (A/D) line. Learn to confirm trends and spot potential reversals by combining price and v...
A step-by-step tutorial on building a fully functional Expert Advisor based on the Bill Williams' Alligator indicator. Learn how to use iAlligator() to identify trends and pla...
Learn how to use functions like IsTradeAllowed(), IsConnected(), IsDemo(), and IsTradeContextBusy() to prevent common trading errors and build more reliable and robust Expert Advis...
Learn how to use the SignalBase...() and SignalInfo...() functions to programmatically access the Mql4 trading signals database. Build custom dashboards, alerts, or analysis tools ...
Discover an advanced Mql4 technique to create and update your own custom offline charts. This guide shows you how to use FileOpenHistory() to write to .HST files, perfect for build...
This tutorial walks you through creating an automated trading strategy based on the Force Index (FI) indicator. Learn how to use the iForce() function to measure the power behind p...
Learn advanced techniques for managing dynamic arrays in Mql4. This guide covers ArrayResize() with reserve memory, ArrayFree() for memory cleanup, and ArraySort() for data process...
Go beyond simple price arrays. This guide provides a deep dive into the MqlRates structure, showing how to efficiently access complete bar data (OHLC, time, volume) with CopyRates(...
This tutorial explores how to build interactive EAs and scripts in Mql4. Learn to use ChartXYToTimePrice() and ChartTimePriceToXY() to convert mouse click coordinates into price an...
Learn how to use Mql4 functions like ChartOpen(), ChartClose(), ChartFirst(), and ChartNext() to create a utility EA that can manage multiple charts, apply templates, and synchroni...
Step-by-step guide to coding an Expert Advisor based on Bill Williams' Accelerator/Decelerator Oscillator (AC). Learn to use the iAC() function to detect changes in market mom...
A comprehensive tutorial on creating an Mql4 Expert Advisor using the Market Facilitation Index (BWFMI). Learn how to interpret the BWFMI colors and volume to generate trading sign...
Learn to automate the Gator Oscillator strategy in Mql4. This step-by-step guide covers reading the Gator's upper and lower histograms using iGator() to identify market phases...
Go beyond basic file I/O and learn to manage entire directories with your Mql4 EA. This tutorial covers FolderCreate(), FolderClean(), and FileFindFirst() to organize log files, re...
Learn how to create an Mql4 Expert Advisor that can automatically trade based on trendlines drawn on the chart. This guide covers using ObjectGetValueByTime() to detect price appro...
Unlock advanced automation by enabling communication between different Expert Advisors on the same chart. This guide explains how to send and receive custom messages using EventCha...
Explore a volume-based trading strategy using the On-Balance Volume (OBV) indicator. This tutorial provides the full Mql4 code for an EA that trades on divergences and trend confir...
Streamline your trading environment setup by learning to programmatically save and apply chart templates in Mql4. This guide shows you how to use ChartSaveTemplate() and ChartApply...
Learn to code an Expert Advisor based on the DeMarker (DeM) oscillator. This tutorial covers the logic for identifying overbought and oversold conditions and automating entries and...
Unlock the full potential of your Mql4 EAs by learning how to use the WebRequest() function. This guide provides a step-by-step example of fetching data from a web API, such as an ...
This tutorial explains how to build a sophisticated multi-symbol scanner Expert Advisor in Mql4. Learn to monitor price action or indicator signals across multiple currency pairs f...
Discover how to implement basket trading logic in your Mql4 Expert Advisor. This guide shows you how to calculate the total profit/loss of multiple open positions and close them al...
Learn to code a powerful trend-following Expert Advisor in Mql4 using the Average Directional Movement Index (ADX) indicator to identify strong trends and filter out ranging market...
Learn to build a complete Mql4 Expert Advisor based on the Commodity Channel Index (CCI). This guide covers using the iCCI() function to identify overbought and oversold conditions...
Keep your trading charts clean and manageable. This tutorial demonstrates how to programmatically remove graphical objects from your chart using Mql4, covering both single-object d...
Create smarter Expert Advisors that adapt to market volatility. This guide provides a full walkthrough of coding an EA that uses the iATR() function to set dynamic Stop Loss and Ta...
Learn how to efficiently save and load complex data in Mql4. This tutorial covers using FileWriteStruct() and FileReadStruct() to manage binary files, perfect for saving EA states,...
Prevent conflicts when running multiple EAs on the same account. This guide explains how to use GlobalVariableSetOnCondition() to create a lock or mutex, ensuring only one EA perfo...
Elevate your Mql4 EAs and scripts by adding interactive buttons directly to the chart. This step-by-step tutorial shows you how to use ObjectCreate() to make a button and process c...
Learn the correct way to close two opposite positions against each other in Mql4. This guide explains the OrderCloseBy() function, helping you reduce spread costs and manage hedged...
Discover how to create powerful Mql4 tools and EAs that can automatically switch the symbol and timeframe of a chart using the ChartSetSymbolPeriod() function. Ideal for building m...
Speed up your Mql4 Expert Advisors and indicators by implementing binary search with ArrayBsearch(). This tutorial covers how to efficiently find values in sorted arrays, perfect f...
Learn to implement a crucial pre-trade check in your Mql4 EAs using the AccountFreeMarginCheck() function. This guide explains how to calculate the required margin before sending a...
Stay updated on your trading activity. This Mql4 tutorial demonstrates how to use the SendMail() and SendNotification() functions to send alerts to your email and mobile device whe...
Learn proper money management techniques in Mql4 by implementing dynamic lot sizing. This guide explains how to calculate trade volume as a percentage of your account balance or eq...
Protect your profits by automatically moving your stop loss to break-even. This Mql4 tutorial shows you how to code the logic to modify an order's StopLoss to its open price o...
Learn how to implement a partial close function in your Mql4 Expert Advisor. This guide provides the code and logic to close a specific portion of an open trade's volume while...
Master the iCustom() function in Mql4. This advanced tutorial explains how to correctly access data from custom indicators with multiple output buffers, like signals, main lines, a...
Learn how to hide your stop loss and take profit levels from your broker using an Mql4 "stealth mode" EA. This guide covers the logic for monitoring prices and closing tr...
Move beyond pips. This Mql4 guide explains how to accurately calculate the profit or loss of your trades in your account's base currency, considering lot size, tick value, and...
Learn how to create a simple news trading EA in Mql4. This tutorial focuses on using time and date functions like TimeCurrent() to schedule trades around major economic events.
Discover how to use magic numbers to distinguish and manage orders from multiple EAs running on the same account. This Mql4 tutorial explains the importance of OrderMagicNumber() f...
Learn to create a hedging Expert Advisor in Mql4. This guide covers the logic for opening simultaneous buy and sell positions and managing them effectively to mitigate risk. Includ...
Move beyond tick-by-tick execution. This tutorial explains how to use EventSetTimer() and the OnTimer() event handler to create Expert Advisors that run logic at fixed time interva...
A complete guide to building a breakout trading strategy in Mql4. Learn to use iHighest() and iLowest() to identify price channels and place OP_BUYSTOP and OP_SELLSTOP orders to ca...
Learn how to use the ChartScreenShot() function in Mql4 to automatically capture a screenshot of the chart whenever your Expert Advisor opens or closes a trade, perfect for visual ...
Learn the most efficient and reliable methods to ensure your Mql4 EA executes its trading logic only once per new bar, preventing duplicate trades and improving performance.
Deep dive into Mql4's array functions like ArraySetAsSeries, ArrayCopy, and ArrayMinimum/Maximum. Learn how to efficiently manage and process data in arrays for custom indicat...
Discover how to automate the Ichimoku Kinko Hyo trading strategy in Mql4. This guide covers how to access all five Ichimoku lines (Tenkan, Kijun, Senkou Span A/B, Chikou) using the...
Learn how to use Mql4's date and time functions to restrict your Expert Advisor's trading activity to specific hours or market sessions, such as the London or New York op
Step-by-step guide to creating a visual trading dashboard in Mql4 using graphical objects. Display real-time account equity, symbol spread, profit/loss, and more directly on your c...
A detailed tutorial on using the iCustom() function in Mql4 to access data from third-party and built-in indicators, including how to correctly handle multiple buffers and input pa...
Learn to build a robust Mql4 Expert Advisor that uses the Average True Range (ATR) indicator to dynamically set and trail stop loss and take profit levels, improving your risk mana...
Discover how to store and retrieve data across different EAs and charts using Mql4's Global Variables. Covers GlobalVariableSet(), GlobalVariableGet(), and GlobalVariableDel()
This tutorial explains how to build an Expert Advisor based on the Parabolic SAR indicator. Learn how to use iSAR() to determine trend direction and implement a trailing stop.
Learn to read from and write to files in Mql4. This tutorial covers FileOpen(), FileWriteString(), FileReadString(), and FileClose() for logging trades, saving data, and reading se...
This guide shows you how to use the Alert(), Comment(), and PlaySound() functions in Mql4 to create custom on-screen notifications and audio alerts for your indicators and EAs.
Learn how to implement a Martingale lot sizing strategy in your Mql4 Expert Advisor. This article provides the code and a crucial discussion on the high risks involved.
Integrate any custom indicator into your Mql4 EA. This tutorial provides a comprehensive overview of the iCustom() function, explaining how to pass parameters and read buffer value...
Improve your trading strategy by incorporating data from multiple timeframes. This guide shows how to get indicator values and price data from different periods in a single Mql4 EA...
Learn how to use Mql4's account information functions like AccountBalance(), AccountEquity(), AccountFreeMargin(), and AccountLeverage() to monitor your trading account from w...
Automate trading based on the Stochastic Oscillator. This tutorial guides you through creating an Mql4 EA that trades the crossover of the %K and %D lines using the iStochastic() f...
Make your Expert Advisors more reliable by implementing robust error handling. This guide explains how to use GetLastError() to diagnose and manage common trading and runtime error...
Learn to visually enhance your charts by programmatically drawing lines, shapes, arrows, and text labels using functions like ObjectCreate(), ObjectSetInteger(), and ObjectSetStrin...
Secure your profits by adding a trailing stop loss to your Mql4 EA. This guide provides the logic and code examples to modify your stop loss as the price moves in your favor.
This tutorial explains how to effectively retrieve historical bar data (Open, High, Low, Close, Time, Volume) into an MqlRates array using the CopyRates() function in Mql4.
Develop a trading robot that trades breakouts of the Bollinger Bands. This Mql4 tutorial covers the iBands() function, entry logic, and provides full source code for your EA.
A practical guide on using OrderModify() to set or trail stop-loss and take-profit, and OrderClose() to programmatically close your open positions in Mql4.
Step-by-step tutorial on creating a MACD trading robot in Mql4. Learn to trade the crossover between the MACD line and the signal line automatically. Full MQL4 code provided.
Learn the correct way to loop through and manage all open market orders in your Mql4 Expert Advisor using OrderSelect() and OrdersTotal(). Essential for any trading robot.
This article provides a complete guide and source code for developing an Expert Advisor based on the Relative Strength Index (RSI) indicator, trading on overbought and oversold sig...
Master the OrderSend() function in Mql4. This tutorial explains all parameters for placing market orders (buy/sell) and pending orders (limit/stop) with code examples.
Learn how to create a simple yet effective moving average crossover trading robot (EA) from scratch using the Mql4 language. This guide covers logic, order placement, and risk mana...
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